In monitoring the early progress of LTE, many industry insiders closely watch countries where mobile operators are aggressively deploying new networks, and offering commercial LTE devices and services. In South Korea, the United States, and Japan, the number of LTE subscribers surpassed that of WiMAX subscribers in 4Q11, 1Q12, and 2Q12, respectively. The findings are part of new market data from market intelligence firm ABI Research detailing the mobile broadband transition.